/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**---
 description: >
    In TypeScript 5.0, you can now add a const modifier to a type parameter declaration to 
    cause const-like inference to be the default. 
 module: ESNext
 isCurrent: true
 error: { code: Cannot assign to '0' because it is a read-only property. }
 ---*/


function getNames<const T extends readonly string[]>(arg: T): T {
  return arg;
}

let newNames = getNames(['a' + 'b', 'cc']);
newNames[0] = 'jack'; // Cannot assign to '0' because it is a read-only property